[INFO] cloning repository https://github.com/37flwr/image-storage-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/37flwr/image-storage-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F37flwr%2Fimage-storage-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F37flwr%2Fimage-storage-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] deebe7be360fbd3f4ea7ae2d0f384870246a79a2
[INFO] checking 37flwr/image-storage-rs against master#f8463896a9b36a04899c013bd8825a7fd29dd7a4 for pr-151920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F37flwr%2Fimage-storage-rs" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/37flwr/image-storage-rs
[INFO] finished tweaking git repo https://github.com/37flwr/image-storage-rs
[INFO] tweaked toml for git repo https://github.com/37flwr/image-storage-rs written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/37flwr/image-storage-rs on toolchain f8463896a9b36a04899c013bd8825a7fd29dd7a4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/37flwr/image-storage-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-core v0.3.26
[INFO] [stderr]   Downloaded zune-inflate v0.2.50
[INFO] [stderr]   Downloaded futures-sink v0.3.26
[INFO] [stderr]   Downloaded simd-adler32 v0.3.4
[INFO] [stderr]   Downloaded spin v0.9.5
[INFO] [stderr]   Downloaded ascii_converter v0.3.0
[INFO] [stderr]   Downloaded zip v0.2.8
[INFO] [stderr]   Downloaded quick-xml v0.9.4
[INFO] [stderr]   Downloaded crossbeam-channel v0.5.7
[INFO] [stderr]   Downloaded exr v1.5.3
[INFO] [stderr]   Downloaded object v0.30.3
[INFO] [stderr]   Downloaded image v0.24.5
[INFO] [stderr]   Downloaded gimli v0.27.2
[INFO] [stderr]   Downloaded dotext v0.1.1
[INFO] [stderr]   Downloaded encoding_rs v0.7.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cbc2f6e752cc0838fdd8efda475196729bb1516f7cde59aa84c050984d0a747e
[INFO] running `Command { std: "docker" "start" "-a" "cbc2f6e752cc0838fdd8efda475196729bb1516f7cde59aa84c050984d0a747e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbc2f6e752cc0838fdd8efda475196729bb1516f7cde59aa84c050984d0a747e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbc2f6e752cc0838fdd8efda475196729bb1516f7cde59aa84c050984d0a747e", kill_on_drop: false }`
[INFO] [stdout] cbc2f6e752cc0838fdd8efda475196729bb1516f7cde59aa84c050984d0a747e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b109d29fe4f460fe5fb94dcc6f31c3f7461e85c7d5c88c70df7744c4d85442dd
[INFO] running `Command { std: "docker" "start" "-a" "b109d29fe4f460fe5fb94dcc6f31c3f7461e85c7d5c88c70df7744c4d85442dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]     Checking gimli v0.27.2
[INFO] [stderr]    Compiling futures-core v0.3.26
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking spin v0.9.5
[INFO] [stderr]     Checking simd-adler32 v0.3.4
[INFO] [stderr]     Checking futures-sink v0.3.26
[INFO] [stderr]     Checking encoding_rs v0.7.2
[INFO] [stderr]     Checking png v0.17.7
[INFO] [stderr]     Checking zune-inflate v0.2.50
[INFO] [stderr]     Checking gif v0.11.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking ascii_converter v0.3.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.51/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a feature with a similar name: `proc_macro_span_file`
[INFO] [stdout]    |
[INFO] [stdout] 92 -     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout] 92 +     feature(proc_macro_span, proc_macro_span_file)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b109d29fe4f460fe5fb94dcc6f31c3f7461e85c7d5c88c70df7744c4d85442dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b109d29fe4f460fe5fb94dcc6f31c3f7461e85c7d5c88c70df7744c4d85442dd", kill_on_drop: false }`
[INFO] [stdout] b109d29fe4f460fe5fb94dcc6f31c3f7461e85c7d5c88c70df7744c4d85442dd
